Chemistry
Grade-10
Easy
Question
Corrosion of metals involves-
- Physical reactions
- Chemical reactions
- Both A and B
- None of the above
Hint:
Iron oxide formed along with brown coating.
The correct answer is: Chemical reactions
- Corrosion is the formation of brittle brown coating on iron.
- A layer of iron oxide is formed on reaction with moisture.
Fe + O2 
Fe2O3
- This is a chemical reaction also a physical reaction as the surface of the metal color changes.
Related Questions to study
Chemistry
What is the name given for silver corrosion ?
What is the name given for silver corrosion ?
ChemistryGrade-10
Chemistry
Rusting can be prevented by
Rusting can be prevented by
ChemistryGrade-10
Chemistry
Keeping food in _____ helps to down oxidation.
Keeping food in _____ helps to down oxidation.
ChemistryGrade-10
Chemistry
Why do potato chips manufacturers fill the packets of chips with nitrogen gas?
Why do potato chips manufacturers fill the packets of chips with nitrogen gas?
ChemistryGrade-10
Chemistry
When a vessel is exposed to moist air, it forms a green coating on the surface. The vessel must be made of:
When a vessel is exposed to moist air, it forms a green coating on the surface. The vessel must be made of:
ChemistryGrade-10
Chemistry
What type of chemical reaction is rusting of iron?
What type of chemical reaction is rusting of iron?
ChemistryGrade-10
Chemistry
The safe effect of the corrosion is
The safe effect of the corrosion is
ChemistryGrade-10
Chemistry
Galvanizing is:
Galvanizing is:
ChemistryGrade-10
Chemistry
What is the chemical name given to Rust ?
What is the chemical name given to Rust ?
ChemistryGrade-10
Chemistry
What two things cause Iron to Rust ?
What two things cause Iron to Rust ?
ChemistryGrade-10
Chemistry
Similarities between corrosion and rancidity are
Similarities between corrosion and rancidity are
ChemistryGrade-10
Chemistry
Examples of corrosion are
Examples of corrosion are
ChemistryGrade-10
Chemistry
Which of the following methods is not used for the prevention of corrosion?
Which of the following methods is not used for the prevention of corrosion?
ChemistryGrade-10
Chemistry
Which of these objects would be affected by corrosion?
Which of these objects would be affected by corrosion?
ChemistryGrade-10
Chemistry
A substance added to food containing fats and oils to prevent rancidity is called:
A substance added to food containing fats and oils to prevent rancidity is called:
ChemistryGrade-10
